Ireland has the highest homicide rate among 10 to 29-year-old men in western Europe, according to a new report from the World Health Organisation.
The study looked at homicides between 2004 and 2006.
Homicide includes murder, manslaughter and unlawful killing.
The report also says Ireland had the second highest number of knife homicides among men.
Ireland ranked 18th overall in the study, which examined 45 countries, including Russia.
Ireland was in 29th place for homicides among young women, according to the report and 26th for knife homicides.
On RTÉ's Morning Ireland, Joan Deane of Advocates for Victims of Homicide said it was clearly a very shocking report.
Ms Deane said it is a very much a male problem, which starts at a very young age.
She said the findings highlighted the 'underlying violence' in younger people in Ireland, which needs to be tackled.
